CNC or automatic surface grinder question

Caution on topic post........
(I asked on CNCzone too, this may get lost in all the politics here.)
On a CNC or automatic surface grinder when should the wheel advance
(crossfeed) over the work, when the table is fully right or fully
left. I would think it would be correct to advance the wheel when the
table is left so as the table comes back to the right you are making
a conventional cut as opposed to climb grinding.
I have my "new" Brown and Sharpe Techmaster in place and need to start
using it, while using it over the next few weeks/months I need to
correct the programming in the PLC. It was converted to an Allen
Bradley SLC 500 plc from its original Modicon.
The programming in it is just enough to make it go back and forth and
advance the wheel in incremental mode only. The other crossfeed
settings do nothing and the crossfeed STOP button only causes the
light to light and does not stop anything at all.
The first item on my list is does it crossfeed at the correct end of
stroke?
Thank You,
Randy
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